Highly Loaded Grain (HLG) Solid Rocket Motors allow extended range and customized thrust profiles with the same propellant and the same size rocket motor. Anduril and Raytheon announced on Oct. 7, 2025 they conducted a static fire test of the former’s Solid Rocket Motor (SRM) featuring a Highly Loaded Grain (HLG) configuration. Anduril described the […]